Dump-car.



UNITED STATES PATENT OFFICE,-

SPENCEROTIS, OF CHICAGO, ILLINOIS, ASSIGNOR TO NATIONAL COAL" DUMP CARCOMPANY, OF- RAPID CITY, SOUTH DAKOTA, AND CHLI- A CAGO, ILLINOIS,CORPORATI Toz w 011-1, my concern;

,- zcnff theUnined; Sia-tes, ,resid-ing @t Chicago;v ln-thecr'nintyI ofvCooland"State of Illinois,t have invented certain new and usefulfI'I'nfli'opbdttoni portionformed of ,a plurality ol lejetio'ns pivotallysecured to the,"4

`l5 .flheginveiition 'relatespiirti'cularly to ythe means which theseswi'ngingbottom {see-1 tionsareopen'ed 'and closedfallpf which will imore'fully hereinafter vap ear.

economical, and el icientmechanism fo'ropenf v'ing vandclosingthezssfmei,"

l vother' mirarme-fobias "of thet investion 2 5 will appear from anexamination ofthe drawingsandjtlieifollowing `description and claims.

"'dropbottomfdurnp-oar' in whichv therejfare 3o vbottom therefor ormejofaplurhlity-o'fswinging sections pivotally secured to the frame- Work'o f""'the car, a plurality of pulleys with `theiraxes transverselyarranged 'and rotata- 1 bly' mounted .on the supporting-'frame of the"A`car, 'ehain mechanism securing such pulleys i and-swingingsectionsofthe drop-bottom to.

, geth'er,'and means 'for Qperatingor rotating'I ksuch pulleymechanisms.'

'Ihe invfention consists', further and'nallf, 4o in thefeatures,combinations, and detai s of av car as it appears when constructedinsie?" cordance With these improvements, showing the drop -bottomsections in closed positionar 'view-y as illustrated in Fig. 3;`Fig. 2,a simi showing the drop-bottom sections ino env or 5o discharginglIpos'ition as illustratedl in ig. 4;

Fig. 3, a cross-sectional elevation of a portion of the car as 1t apears when lconstructed 1n accordance with t ese improvements,showurine-GAF` 'n lreletes to v that class of dump-f 'provided with a'supporting or' soU'rH DAKOTA. Y

I of ILettvers'Patent,l x i lratented March 13, i

Figil. a 'similar .vievlshowing the dropbotjf55 tom portionsin operi" ordischarging osition.

` In illustrating' and-describing t ese iniproveniente I have onlyillustrated .and will deseribeth'at which I consider to 'be neW,"

t'ken in'voonnection with So'much as is'bld Vas' 6o .will pro erlydisclose the invention to others.

and ena le those skilled inthe artto prgctioef the same,gleaving out ofconsideratiogther and'welbknow'n elements, which, if set forthl .ffherein, would only ftend to confusion,l prolix-` ity, and ambiguity.v l

vIn ("jmstructing e dump-"car in accordance withvthes'e improvements Iprovide: al supportingx-amework a 'a, ,o f"a11yv desired 'for'rn andconstruction and lprefer to gse inv con- C Q nection therewith side andend bljards b'anfd y 'Ifh'e principal ob1ect 5o' theiventionis tol zoprovides, drop-bottomduinpcarfdim'ed*of af plurelity of swin in gsectionsjvvv'ithA simple,v

c, respectively, which may be secured thereto in any convenient or usualIna-nner. i' Toprovi'de a drop-bottom'portionfor this dump-car,y aplurality of Swingin rsections d "f are provided and pivotally secureattheir viti-' ner ed es toc the supportin -rame'work of the car ang ateaohside of thet ongitudinal cer'iter.I thereof, To open and clese thesedrop-bot#I 'l tom swinging sections, a plurality of s heav'e` l80pulleys e are provided androt'atably mounted on the framework "of theoar ,trans\'fe1 se 1"y v A.thereof underneath a housing f and adjacent,l

to .the side posts or stakes y. There 1s jat@ least one of thesesheavepulleys for each 85 swinging section, asshown particularly-' 'in'v Fi s. 1 and 2, and each of these pulleys is' pro-1 4 ved with a chainh, whichis-seenredthereto and to itsrespectiveswingin section ator nearthefree edge thereof. ,'o rotate theseoo sheave-pulle'ys; andtherebypermitthe open-1 "4 ling andolosing of the dropebottoni Swinginsections, a slidingoperating-bar c'\1s,pro,vide' and slidably mountedinthe side freine 'of the? 5 i;

car above and'adj 'acent to its respective 'sfet ofi 95 from thissliding operating-ber to each sheavei' 'j Aulley and toa roove separateand .distinct omV the groove In which the-chains 7i arese-v cured, sothat there will'be'no interference or r0.0 y

clogging duringthe operative movements of' theparts. `It'isneeessary tomove this slid;

ing o 'erating` bar in an efficient manner.'

F-'ort fs purpose arnan operating-shaft cis A rovided and rotatablymounted on the.

arnework of thecar-c. e., in suitablebear- Lft ings in the end poststhereof, as shown par ticulurly in Figs. 1 and '2. A Chain Z isconnected with the end ol' this sliding operatingbar and wound aroundthe moin opeiaotingshalt, llhis main operating-shaft hns one or twosquare end portions and fnrtl'ier provided with a rutchetfwheel m,adapted to be ei'igaged with s dog n, which will hold it, and therebythe sliding operating-bar, iu any der sircd position-viz., to keep thedoors closed or permit them to remain partially open --nll of which willbe understood und appreciated by those skilled in the art.

l. A car of the class described having a bottom coinprising swingingdumping-doors, and means for operating the doors compri ing nlongitudinally-movable member amd n rotatable member :nid flexibleconnections between the longitudinellysmoveble member and the rotatablemember end between the rotatable member and the doors.

2. ln :t dump-cor ol' the class described, the combination ol asupporting-frmnework, a drop-bottom portion 'formed of a plurality otswinging sections pivotally secured ut their inner edges to theframework of the car et each side of the longitudinal conter, aplurality of pulleys rotatably mounted on the framework of' the cartransversely thereof- :Lt leest one for each swinging bottom section,chain mechanism securing the pulleys to the swinging bottom section, anoperating-bnr slidably mounted longitudinally of' the enr and adiaeentto the pulley mechanism, chain mechnnism securing said-sliding ber toeri-eh and every pulley, and means for movin g seid sliding or operatingbar, substantially its de- ,.,ibed i 3. In s dump-car of the classdescribed, the combination of supporting-freniework, o drop bottonitherefor `formed of s plurality of .c ections pivotallysecured theretoet ener and each side of the longituf nal center, s plxrelty ofsheav'e-pul-l rotatably mounted on the frame of the transverselythereoi,chain mechanism securing such vsheove-pulleys and drop-bot tom sectionstogether, :L sliding operating-bnr arranged `rbovev and adjacent to saidsheavepulleys, chain mechanism securingr suid sliding bnr to each :mdeyery sheoye-pulley, :L moin operating-shaft. rotatably mounted in theframe of the ear tronswrsely thereof, und clmin mechanism securing suchslidingr bar to the muinoperati11g-shaft,substantially ns described.

4. ln n dump- 'nr of the class descril'led, the combination of esupporting-framework, :t dropdiottom therefor formed of n. plurnlity'olswingingr sections i'iivo'tnily-"secured thereto at their inneredgesinid et euch side ol' the longitudinal center, fr plurality olsheavepulleys rotatably mounted on the freine of the ear trzmsverselythereof', chain ingwlutnism securing such slie:we|n1lleysund'diiopbottom sections together, :L sliding opernting-bnr arranged:there and adjacent to said sheztve-pullcys, chain mechanism securingsaid sliding bar to each and every sheavepulley, zt main operating-shaftrotatably mounted in the frame of' thc cnr trmiswusely thereof, chainn'leehonism securing;r such sliding bnr tothe main operatting-shuft, andratchet-mnl-dog mechanism on said main operating-shaft to hold it indesired position, substantially is described.

5. ln n l1|1r1p-ea1ofthe class described, the coinbimttion ofo.-supportilig-frame portion, a drop-bottom therefor formed of eplurality of swinging sections pivotally secured to the frmnewo'rk ofthe car at each side of the longitudinal center, a. longitudinallymovable 'slidnble operutingbor, means connected with said slidsble bnrto close said swinging drop-bottom sections, und a main windingsheftprovided with chain mechanism eounecting it with suid sliduble bnr tooperate the samer and thereby close the swinging drop-bottom sections,substantially as described.

L. lv J Y, I QPENUFR (VPH Witnesses l THOMAS l". SHERIDAN,

ANNIE C. Counrnxm'.

